<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div>
  <h1>身体质量指数测试</h1>
  <input type="text" placeholder="身高(米)" v-model="h">
  <input type="text" placeholder="体重(公斤)" v-model="w">
  <input type="button" value="开始测试" @click="f()">
  <h2>{{info}}</h2>
</div>
<script src="https://cdn.bootcdn.net/ajax/libs/axios/0.21.1/axios.min.js"></script>
<script src="https://cdn.staticfile.org/vue/2.2.2/vue.min.js"></script>
<script>
  let v = new Vue({
    el:"body>div",
    data:{
      info:"",h:"",w:""
    },
    methods: {
        f(){
            //发出异步请求,把身高和体重传递到服务器
            axios.get("/bmi?h="+v.h+"&w="+v.w).then(function (response) {
                v.info = response.data;
            })
        }
    }
  })
</script>
</body>
</html>